Sick Chick

We have 2 week old chicks. One is sick or injured. She stays huddled up under the heat lamp. She will not lift her
head up (straighten out her neck) but keeps her head tight to herself in her huddle. She barely moves. She is not
growing like the others. I first noticed she was not right a few days ago but hoped she would come around.
No luck. She walks fine when she walks and spent the first couple of days standing in a huddle but now is laying
down in a huddle. I doubt there is much I can do but hope.
Does anyone have any suggestions or thoughts?

unfortunately chicks sometimes get like this and all you can do is wait but once they get this far along mortality is quite high... If you have othe chicks Id treat with some antibiotic to be on the safe side

I am editing this to say the little chick passed away
This morning she was very bad and I decided to help her on her way once I dropped kids off at school. I got home and she had passed on her own.

I looked back at photos and I realized this little gal arrived not quite right. She was always kind of huddled up but standing. I
just never noticed her not being all right because all the other chicks were either running about in mass confusion or sleeping.
I always assumed she was in quiet mode. She was walking and standing. But she never really raised her head up. You can see
how she has her head pulled close in her photo below. She did eat and drink just enough to keep her going. The reason I finally
noticed was because she was not growing like the others. She was half the size of even the bantam chicks and she is not a bantam.
Also as they grew the others grew crazier. I should also point out she could not peep at all. Just open her mouth and try but
no sound. She survived just over 3 weeks.